Industrial Power Tools 2010-11 - Atlas Copco

ErgoPulse impulse tools – fast, reliable
and operator friendly
Introduction – ErgoPulse
The speed, reliability, and accuracy of ErgoPulse hydraulic impulse nutrunners, combined
with the fact that they are comfortable to operate, make them suitable for continuous
heavy production. Since there is no metal-to-metal impact in a pulse tool, it
provides a softer, more controlled pulse with considerably less vibration and noise
than an impact wrench.
A complete range
ErgoPulse impulse tools are available
in straight and pistol grip, shut-off and
non shut-off versions. The range covers
torque from 2–900 Nm.
The ErgoPulse principle – The heart of
a pulse tool is the hydraulic pulse unit.
Since the pulses are very short, there
is almost no reaction force in the handle,
only the much lower motor torque is
transferred to the operator’s hand. In addition,
there are less vibrations and noise
than with an impact wrench. Combined
with good balance and low weight the result
is a tool that is very comfortable to
operate.
PTS and PTX shut-off pulse tools
Atlas Copco shut-off pulse tools shut off
the air supply when the pre-set torque
is been reached. Operator influence is
minimized and the result is increased accuracy
and faster tightening.
Torque sensing system – In ErgoPulse
PTS and PTX nutrunners torque is
“sensed” by means of a rotatable inertial
mass acting against an adjustable
spring. The result is a highly accurate
and easily adjustable shut-off system.
Pulse mechanism – The pulse mechanism
has pistons for minimum weight
and long service life. The design is based
on cam-guided pistons and rollers and
the pulse cylinder is oil-filled. The moving
parts are thus completely immersed
in oil, which ensures a long service life.
Twin chamber vane motor – This is designed
to give high torque at low speed,
which gives the best characteristics for
fast, accurate tightening.
TRIM valve – A patented adjustable
valve at the air outlet is used to maximize
tool accuracy on one type of joint,
which could be hard, medium or soft.
AUTOTRIM valve – PTS/PTX-AT tools
are equipped with an automatic twostage
trim valve. The tool runs down the
screw with reduced free speed. After 1-2
pulses it shifts automatically to full power
thus enabling both hard and soft joints to
be tightened with excellent results with-
out any adjustments. The PTS/PTX-AT
tools can also be used for reporting applications.
ErgoPulse PTS-HRF – These
are Air-on-Top versions which offer full
flexibility. You either use the air inlet on
top to avoid the disturbing hose hook or
you use the conventional air inlet at the
bottom of the handle – a convenient tool
for use in workstations.
ErgoPulse PTX – The new ErgoPulse
PTX series is intended for applications
where weight is critical. The tools are
available in both Trim and AutoTrim versions.
ErgoPulse 25PTX
At the top of the PTX range, is the new
ErgoPulse 25PTX, which gives you 900
Nm of tightening torque in a tool weighing
only 10.3 kg.
ErgoPulse XS non shut-off tools
ErgoPulse XS is the correct choice when
the operator needs to control the process.
The tools provide high torque, fast,
accurate tightening and long service lifetimes.
Twin chamber vane motor – This is designed
to give high torque at low speed,
which provides the best characteristics
for fast, reliable and accurate tightening.
Double or triple bladed pulse mechanisms
– The tools are equipped with
pulse units with two or three blades.
They employ the Atlas Copco patented
cam-guided design to push out the
blades, giving very high reliability. The
pulse units have a high power-to-weight
ratio, making the tools very powerful for
their size. Torque is adjusted by regulating
an artificial leak in the hydraulic circuit.
ErgoPulse 6PS
This model is a good choice for tightening
self-tapping screws and when fast,
powerful reversing is needed. Torque is
adjusted by regulating the air pressure.
Pneumatic Assembly Tools 33
Hydraulic Impulse Nutrunners